Sensory science

The statistical test for comparison of means from small sample size (n less than 30) based upon their distribution when the standard deviation is known as

The t-distribution or Student's t-distribution

What does the term oleogustation refer to?

The taste of fat

Describe stimulus error.

This occurs when panelists notice otherwise irrelevent factors regarding samples or their presentation which modifies their perception.

In a Triangle Test, how many samples are presented, and how many are identical?

Three samples are presented, and two are identical.

What is the mathematical model used in sensory descriptive determination test?

Thurstonian model

Which of the following flavors can be felt at the tip of the tongue: sweet, salty, sour, bitter, umami?

Traditionally: Sweet and salty are more prominent at the tip. However, all taste buds can detect all tastes; the "tongue map" is outdated.

What specific type of sensory test is used to determine if a perceptible difference exists between two samples, where a panelist is presented with three samples and asked to identify the odd one?

Triangle test

What sensory test is most appropriate to determine whether two products are perceptibly different?

Triangle test (or difference test).

What is the main difference between a triangle test and a 2 or 3-AFC test?

Triangle tests the difference is unknown, 2-AFC the subjects are specified to what characteristic is different.

What is another name for cranial nerve V?

Trigeminal nerve

Identify the name of this sensory test: five samples are presented and panelists are instructed that two are of one kind and three are of another. The panelists are then asked to identify the two different samples.

Two out of five test

The fifth taste response, whose substance are often called flavor potentiators like MSG is called?

Umami

The fifth taste response, activated by flavor potentiators like MSG, is called?

Umami

What is the name for the 5th basic taste, sometimes called savory?

Umami

In 1908 what new taste was discovered?

Umami

What is the compound Caffeine Citrate used for in Sensory?

Used as a standard for bitterness

Describe the halo effect.

When more than one attribute of a sample is evaluated the ratings will tend to influence each other. Simultaneous scoring of various flavor aspects along with overall acceptability can produce different results than if each characteristic is evaluated separately

Describe logical error.

When two or more characteristics of the samples are associated in the minds of the assessors. Knowledge that a darker beer tends to be more flavorful, or that darker mayonnaise tends to be stale, causes the observer to modify his verdict, thus disregarding his own perceptions

In sensory science, what does a “triangle test” evaluate?

Whether there is a detectable difference between two samples; the panelist must identify the odd sample out of three.

Who is more sensitive to sweet and salty tastes, men or women?

Women.